IAD - SYD

$834 Find Cheap Flights from Washington Dulles Airport to Sydney – Compare and Save

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Everything you should know

Cheapest return flight
$1,867
Typical prices: $1,880-$2,720
Air Canada
Tue 16/1Tue 30/1
IAD - SYD • 2 stops
Cheapest one-way flight
$834
Typical prices: $1,378-$1,676
Multiple Airlines
Fri 2/3
IAD - SYD • 3 stops
Direct flights
Not available
There are currently no direct flights between Washington, D.C. Dulles Intl Airport and Sydney. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
22 weeks
in advance
Our data shows that travellers who book at least 22 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 19% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $2,206 (return)
San Francisco (SFO)
Shortest trip • 21h 37m (one-way)
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Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Sydney (IAD-SYD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dulles Intl to Sydney

Sat, 16 Jan - Sat, 30 Jan
Air Canada Logo
13:19 - 09:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
52h 16m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
11:20 - 20:23SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
25h 03m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,867Air Canada
Fri, 13 Nov - Tue, 24 Nov
Air Canada Logo
09:55 - 09:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 40m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
11:20 - 11:48SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
40h 28m2 stops Vancouver Intl Ottawa
$1,868Air Canada
Fri, 29 Jan - Mon, 1 Mar
Air Canada Logo
13:19 - 09:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 16m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
11:20 - 11:47SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
40h 27m2 stops Vancouver Intl Ottawa
$1,870Air Canada
Fri, 13 Nov - Mon, 23 Nov
Air Canada Logo
09:55 - 09:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 40m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
11:20 - 16:26SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
45h 06m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,874Air Canada
Sun, 14 Mar - Tue, 23 Mar
Air New Zealand Logo
06:36 - 08:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
34h 59m2 stops Los Angeles Auckland Intl
Air New Zealand Logo
11:50 - 22:43SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
25h 53m2 stops Auckland Intl San Francisco
$1,875Air New Zealand
Sat, 13 Feb - Wed, 17 Feb
Air Canada Logo
13:20 - 09:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
28h 15m2 stops Ottawa Vancouver Intl
Air Canada Logo
11:20 - 20:10SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
24h 50m2 stops Vancouver Intl Toronto Pearson Intl
$1,877Air Canada
Sat, 10 Apr - Sat, 24 Apr
Air Canada Logo
09:55 - 07:20IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
31h 25m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl
Air Canada Logo
09:20 - 11:16SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
39h 56m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
$1,878Air Canada
Sun, 14 Mar - Sun, 28 Mar
American Airlines Logo
07:16 - 06:55IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
32h 39m1 stop Dallas/Fort Worth
American Airlines Logo
10:20 - 23:35SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
28h 15m1 stop Los Angeles
$1,880American Airlines
Tue, 24 Nov - Tue, 1 Dec
Qantas Airways Logo
06:00 - 06:25IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
32h 25m1 stop Los Angeles
Qantas Airways Logo
11:10 - 05:30SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
34h 20m1 stop Los Angeles
$1,881Qantas Airways
Sat, 13 Feb - Sun, 21 Feb
Air New Zealand Logo
22:13 - 09:35IAD  Washington, D.C. Dulles Intl-SYD Sydney Kingsford Smith
43h 22m1 stop Toronto Pearson Intl
Air New Zealand Logo
11:20 - 20:23SYD  Sydney Kingsford Smith-IAD Washington, D.C. Dulles Intl
25h 03m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,884Air New Zealand
Booking Insights

Price, demand, and travel trends for Washington, D.C. Dulles Intl Airport to Sydney flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Washington, D.C. Dulles Intl Airport to Sydney?

Return flights from Washington, D.C. Dulles Intl Airport to Sydney typically range from $1,880 to $2,720. The lowest price found in the past 5 days was $1,867 on Air Canada.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Sydney?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Sydney. It's 7% cheaper than the average day, while Thursday is the most expensive, with prices 14% higher.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Sydney?

•November is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Sydney at $1,864 return.
•December ($2,962) and June ($2,500) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 58% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. Dulles Intl Airport to Sydney the cheapest?

Flights from Washington, D.C. Dulles Intl Airport to Sydney are cheapest 22 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Washington, D.C. Dulles Intl Airport to Sydney flights

Low season

August

Cheapest flight

$834
Beat the crowds with an average 52% drop in travellers.
The most popular month to fly with an average 42% increase in travellers.
One-way flight from Washington, D.C. Dulles Intl Airport to Sydney

When to book flights from Dulles Intl to Sydney

Are your dates flexible? Find out the best times to travel from Dulles Intl to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Washington, D.C. Dulles Intl Airport to Sydney flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Sydney?

    Two cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Sydney:

    • Economy class
    • First Class

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Sydney?

    A direct flight from Washington, D.C. Dulles Intl Airport to Sydney takes 00m, covering 25,219 km.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Sydney?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Sydney flight?

    Return flights from Washington, D.C. Dulles Intl Airport to Sydney range from $1,880 to $2,720, with an average of $2,293 over the past 12 months. Anything below $1,880 counts as a good deal.

  • How expensive are last-minute Washington, D.C. Dulles Intl Airport to Sydney flights?

    Last-minute fares on this route (booked within two weeks of departure) run 23% above the $2,293 route average. Book 22 weeks before departure for the lowest fares.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Sydney looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Sydney are currently lower than usual. Average one-way flight prices are about $915, which is 42% below the typical average for this route.

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Sydney?

    Flights from Washington, D.C. Dulles Intl Airport to Sydney usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Sydney Kingsford Smith (SYD).

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Sydney pass through?

    One-stop flights from Washington, D.C. Dulles Intl Airport to Sydney most commonly connect through:

    • San Francisco (SFO) – 29% of one-stop connections
    • Los Angeles (LAX) – 24% of one-stop connections
    • Dallas/Fort Worth (DFW) – 22% of one-stop connections
    • Doha Hamad Intl (DOH) – 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Sydney?

    Yes. Flexible dates can save you up to 19% on flights from Washington, D.C. Dulles Intl Airport to Sydney. Tuesday is the cheapest departure day at $2,146 return on average, while Thursday is the most expensive at $2,622, a difference of $477.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Washington, D.C. Dulles Intl Airport to Sydney?

    Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time of 21h 37m, compared to 22h via Dallas/Fort Worth (DFW) and 22h 43m via Los Angeles (LAX).

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Sydney?

    Sydney is 15 hours ahead of Washington, D.C. Dulles Intl Airport (Eastern Australia Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Sydney?

    Some of the most popular sights in Sydney are Sydney Opera House, Star Casino, and Capitol Theatre. These are among the most viewed places in Sydney on KAYAK.

  • Which airlines are suitable for families flying from Washington Dulles Airport to Sydney?

    Families with children traveling from Washington Dulles Airport to Sydney should consider traveling with Qantas Airways. They provide activity packs filled with games, puzzles, coloring books, and other fun items to keep young passengers entertained during the flight. Qantas Airways also offers a dedicated children's inflight entertainment section featuring a variety of movies, TV shows, and music suitable for different age groups.

  • Which airline should I book for an unaccompanied minor flying from Washington Dulles Airport to Sydney?

    United Airlines is a great option for an unaccompanied kid traveling from Washington Dulles Airport to Sydney. According to United Airlines regulation, a child between the ages of 5 and 15 are permitted to fly alone as long as they have parental or guardian consent and can show identification. A passport or a driver's license with a current photo is required from parents or guardians. In addition, parents or guardians must complete the Unaccompanied Minors Form in person at the airport of departure.

  • Which airline from Washington Dulles Airport to Sydney is ideal for persons with special needs?

    If you have special needs and require extra assistance, fly on Qantas Airways from Washington Dulles Airport to Sydney. The airline assists passengers who require mobility aid, including wheelchair assistance, during boarding and disembarkation. They provide accessible seating options and priority boarding for passengers who need extra time or assistance. Passengers with visual impairments can request assistance with Braille safety cards and cabin announcements.

  • Which airlines offer business and first-class flights from Washington Dulles Airport to Sydney?

    Business and first-class flights are available from Washington Dulles Airport to Sydney on United Airlines and Qantas Airways. United Airlines provides pre-departure refreshments, premium entertainment, and bedding from Saks Fifth Avenue. Qantas Airways offers first-class, business-class, and premium economy flights with great service, gourmet meals, and an extensive wine list.

Your guide to booking Washington, D.C. Dulles Intl Airport to Sydney flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Thursday. On this route, Tuesday flights average $2,146, about $477 less than Thursday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 22 weeks before you fly. On this route, that window historically saves about 38% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Sydney trip for November. Fares historically average $1,864 return in that month – typically $1,098 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sydney Kingsford Smith Airport.

    • ibis budget Sydney Airport
    • Travelodge Hotel Sydney Airport
    • Rydges Sydney Airport Hotel
  • Passengers flying from Washington Dulles Airport (IAD) to Sydney will land at Sydney Airport (SYD). Sydney Airport (SYD) is a base for Qantas Airways, which offers competitive prices and flexible travel policies for flights from IAD to SYD.
  • You can get flights from Washington Dulles Airport to Sydney with a layover en route. The layovers differ with your airline, with most stopping at their hubs or base of operation. United Airlines and American Airlines flights have a layover at Los Angeles (LAX) and San Francisco (SFO), respectively, while ANA flights stop in Tokyo (HND).
  • Qantas Airways provides sustainable flights to Sydney from Washington Dulles Airport. Qantas Airways prioritizes sustainability in its operations and invest in eco-friendly aircraft technology. The airline is committed to reducing greenhouse gas emissions, improving fuel efficiency, and investing in sustainable aviation fuels. They prioritize aircraft fleet renewal with more fuel-efficient and lower-emission planes.
  • United Airlines has pet-friendly policies for flights from Washington Dulles Airport to Sydney. Pets are permitted in the cabin or cargo hold in an authorized kennel or carrier. The kennel or carrier should be leak-proof, well-ventilated, and have enough space for the pet. The carrier's maximum size and weight limits are 17 x 12.5 x 7.5 inches and 17 lb, respectively.
  • Public transport options from SYD to downtown Sydney include the train and bus. Train T8 runs every 5 minutes from the airport station to downtown Sydney. Murrays Coaches operates a bus that runs every hour from the Terminal 1 bus stop to downtown Sydney.

More options for your flight from Dulles Intl to Sydney

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